Materials Literature
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On the basis of considering the effect of the Si substrate film,the temperature field of the shape memory alloy/Si composite film was modeled theoretically first,then the temperature response of NiTi-shape memory alloy/Si composite film was simulated and optimized by the MATLAB software in a complete thermal cycle.It…
Super water-repellent composite particles were prepared with surface-modified composite particles of CaCO3/SiO2.The wettability of the composite particles was checked by contact angle measurements.It was indicated that super water-repellent composite particles could be obtained when the mass ratio of CaCO3 to SiO2 was…
Electroless Ni-P platings were deposited on Micro-arc Oxidation(MAO) films from TC4 alloy prepared for different time.The influence of different microstructures of the MAO films on the adhesion property between the electroless Ni-P plating and the MAO films were investigated by SEM,automatic scratch tester and thermal…
The phase transition dynamic model was build up with the reactant consistency as phase transition dynamic variable according to phase transition dynamics of combustion chemical deposition.Based on the principles of complete combustion,no excess atomizing agent and well-atomized effect,the experiment parameters with we…
Composites were prepared with unsaturated polyester resin(UPR) and woodflours which were modified by silicane coupling agent(MW) and unmodified(UW).The effects of modified method and woodflour particle size on the mechanical properties of composites were studied.Comparing with neat UPR,the tensile strength and impact…
Carbon/graphite composites were prepared from petroleum coke and graphite with phenolic resin as binder at 1 100 ℃,and disodium hydrogen phosphate,boric acid,silicon carbide as additives were added to enhance the performance of composites.The effect of additives on the properties of carbon/graphite composites has been…
PVA was employed in polymer assistant combustion method to fabricate LaCo0.6Ni0.4O3 powder.The effect of using different amount of PVA on synthesis temperature and the morphology of the powder were indicated by thermal analysis and scanning electron microscope respectively.The conduct property of LaCo0.6Ni0.4O3 was me…
Coal resources as a major national energy industry,coal production is directly related to national economic growth rate.To ensure the modernization of coal production,coal production must be increased degree of mechanization,and thus to achieve high yield and efficiency purposes.Coal production environment is poor and…
By detail operating parameters on FCC regenerator of Yangzi Petrochemical refinery 800 000 t/a FCCU,we designed a set of monotype fluidized bed combustor experimental system to simulate the actual operating conditions in industrial,and investigation the influence of temperature,pressure and excess air coefficient on N…
The extraction technology of collagen peptides from acaudina molpadioides was studied in this article.The non-collagen protein of acaudina molpadioides was separated by sodium chloride solution,using single factor experiment to validate the optimal conditions of sodium chloride solution including the concentration of…
Liner is an important part of automobile exhaust purifier to ensure its life span and safe working.Usually the liner is made of high temperature resistance fiber,latex,and dilatable material.The category and charge level of latex is very essential to ensure the liner properties.Experiment shows that acrylic resin can…
The colloidal dispersion of indium tin oxide(ITO) nanoparticles in a butyl acetate solvent was achieved using a milling process in which PVP and titanate were used as dispersants.The effects of various parameters such as different pH value,dispersant dosage,zirconium oxide ball diameter and the interface and milling t…
The advance on application of TG-DSC/DTA-MS coupling techniques in research on catalytic materials, including metal catalysts, metal oxide catalysts, zeolites and porous materials, was reviewed.
The density functional theory(DFT) is used to describe the perpendicular phase separation of binary mixed polymer brush grafted on a surface immersing in different solvents.The DFT predicts that: for binary compatible polymer brushes with the same chain length and interaction potential,the grafted layer shrinks in non…
The reliable magnetization model of current transformer core is of importance for the study on residual flux and saturation of the core.In this work,a new magnetization model of current transformer core based on stack operating is presented.The magnetization characteristics of the core are summarized,the classificatio…
A simple and reliable fabrication method about prussian blue(PB)/multi-walled carbon nanotubes(MWCNTs) nanocomposites was proposed for determination of dopamine(DA).MWCNTs was used as an enhanced compatible platform attributed to its unique structural,physical and chemical properties for PB electrodeposition.PB/MWCNTs…
Energy storage mechanisms of LiFePO4/activated carbon(AC) composite and effects of LiFePO4,AC content on the electrochemical performance of the cathode were investigated by experiments of A.C.impedance,cyclic voltammetry and galvanostatic charge/discharge.The addition of AC could increase the electronic conductivity a…
Three kinds of O-quaternary ammonium-N,N-dialkyl chitosan(QADCS)with different alkylation lengths were prepared by a self-developed quaternary ammonium reagent,glycidyl ethyl trimethyl ammonium chloride ether.The products were characterized by FTIR,EA and 1H NMR.The monolayers of the synthetic products were studied.It…
Due to great disparity in hardness of core and case of the case harden gear,the excessive cycling contact stress on gear case trends toward pitting and spalling of the gear case,which is related to the thickness of hardening layer and the distribution of the deep contact stress.But the calculation of deep contact fati…
Using first-principle within density functional theory(DFT),the structure,half-metallic stability and magnetic moment of quaternary Heusler alloys Co2Ge1-xGax were investigated.The results present that with the change of doped Ga contents x,their lattice constants follow Vigard law.In the case of Co2MnGe1-xGax series,…